Operation Manual

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17.2 Troubleshooting
If your robot lawnmower does not function correctly, follow the recommendations below. If the fault is not listed here or you
cannot identify it, contact an Authorised Service Centre for help with troubleshooting.
Fault messages Possible cause Measure
Low battery voltage Boundary cable defective, robot lawnmower
does not  nd the base station.
Check the boundary cable for interruptions,
if necessary have it tested by an Authorised
Service Centre.
Battery exhausted. The battery has exceeded its service life. Have
the battery renewed by an Authorised Service
Centre.
Charging electronic control unit defective. Have the electronic control unit checked by
an Authorised Service Centre.
The robot lawnmower does not touch the
charging contacts.
Push the robot lawnmower into the base
station and check if the charging contacts
make contact.
Have the spring mechanism or the charging
contacts checked by an Authorised Service
Centre.
Have bent or broken charging contacts
renewed by an Authorised Service Centre.
Incorrect PIN code The wrong PIN code was entered. Enter the right PIN code. Three attempts are
possible, after which a PUK code must be
entered.
Fault code CN07 Mowing motor too hot. Switch the robot lawnmower o and back on
again.
Do not continue operation if this fault
message reoccurs.
Have the robot lawnmower checked by an
Authorised Service Centre.
Fault code CN008:
Loop signal
Transformer mains plug not plugged in. Plug in the transformer mains plug.
Boundary cable interrupted. Repair the boundary cable.
Fuse in the base station defective. Renew the fuse in the base station.
Transformer defective. Renew the transformer.
Boundary cable is dug in too deeply. Correct the depth at which the boundary
cable is dug in.
Fault code CN023:
Tilt sensor activated
Tilt sensor activated. Place the robot lawnmower on a flat, level
surface and press Con rm.
Fault code CN011 - 22: Tilt
sensor
Tilt sensor. Contact an Authorised Service Centre.